Misfire, Fuel smell, and no acceleration

[JamesN]

On the way home from work in my LS400 today suddenly the car misfire, sputters, and shakes like mad. The tach gone wild and needle bouncing rmp all over the place. When I rev the needles hit to 0 and bounce back to 1. Then I notice a strong fuel smell. As I limp home the fuel smell is still there but also a smell of burning cat or manifold.
Here is what I change so far but no luck.
1) sparks plugs
2) sparks plugs wires
3) cap and rotors.

Here is what I think what could be wrong next.
1) Bad MAF
2) Fuel Injectors
3) Ignition coils

Can anyone help me narrow down or suggest what kind of problem this is?? Thank You Very Much.

 

[Anaema]

you could check the O2 sensors, if they go bad the a/f ratio will be f****d, possibly causing misfire.

EDIT by Lextreme:

Please do not use the 4 letters word again.

 

[JamesN]

I found out the problem

. It was the Ignition Coil that caused this.

 

[Lextreme II]

Good job James. You were running half of the engine. Gas smell was from un burn gas.